... Shindoo Chemical Co., Ltd.2.Function: It is mainly used for dry batteries, storage batteries, ammonium salt, leather tanning, electroplating, ... %1maxMoisture%1maxResidue of ignition0.4%maxFe%0.001%maxHeavy Metal(by Pb)%0.0005%maxSulfate (by SO)%0.05%maxPH Scale (200g/l Solution ... )4.0-5.8 Ammonium Chloride Industrial ...